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    1. #1
      Junior Member event's Avatar
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      Intermittent Low Battery Warning

      Hi, I replaced my battery a couple months ago and since then I will randomly get low batter voltage warnings, even after driving. The car starts up fine every time. No adverse effects other than the warning. Anybody know why this is? I replaced it with an Interstate battery from Costco.
      2017 S90 T5 Momentum - Magic Blue over Amber (Wife's)
      2015 V60 T6 R-Design Polestar - Savile Grey Metallic over Nubuck (Mine)

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    3. #2
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      Did you reset the battery monitoring system when you replaced the battery? If not, the car will think the battery is very old and will throw warnings earlier than it should out of an effort to protect what it thinks is an old battery without much ability to tolerate heavy discharge.

      I have seen some people claiming button press methods to reset the battery monitoring system, but the only one I've seen confirmed to work is to reset the battery monitor through VIDA or VDASH.
      I'm not good, I'm not nice, I'm just right.
      2012 S60 T6 R-Design | 1998 S70 T5 SE | 1986 944 Turbo

    4. #3
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      Did you have the battery electronic module (or whatever it is called) reset?
      It tells the car you have a new battery and recharges it accordingly. Not saying it is the cause but it may be.
      Yes, it is a pain and should be something the owner can simply do on their own from the car settings.
      2012 S60 T5 Savile Gray/Beachwood

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    6. #4
      Member Veefifty T5AWD's Avatar
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      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      Logan

      2015 S60 T6 AWD R-Design Polestar
      2008 S40 2.4i - hers

      Former:

      2013 C30 Polestar Limited Edition #87/250 | 2005 V50 T5 AWD | 1995 Yellow 850 T5-R

    7. #5
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      yep, reset battery monitor using vida/dice...

    8. #6
      Junior Member event's Avatar
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      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      The battery icon did indeed flash. Time will tell if the voltage error goes away, it's very intermittent! thanks a lot!
      2017 S90 T5 Momentum - Magic Blue over Amber (Wife's)
      2015 V60 T6 R-Design Polestar - Savile Grey Metallic over Nubuck (Mine)

    9. #7
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      Quote Originally Posted by event View Post
      The battery icon did indeed flash. Time will tell if the voltage error goes away, it's very intermittent! thanks a lot!
      Very interesting indeed. I hope it works. Keep us posted.

      By the way, when you press the Fogs 6 times, is that 3 times On and 3 times Off or 6 On and 6 Off?
      Same for the Hazard is that 3 times On and Off?
      Last edited by Almaz; 01-21-2020 at 01:55 PM.
      2012 S60 T5 Savile Gray/Beachwood

    10. #8
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      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      This worked on my 2015.5 V60 RD but didn't work on my wife's 2013 XC70.

    11. #9
      Junior Member event's Avatar
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      Quote Originally Posted by Almaz View Post
      Very interesting indeed. I hope it works. Keep us posted.

      By the way, when you press the Fogs 6 times, is that 3 times On and 3 times Off or 6 On and 6 Off?
      Same for the Hazard is that 3 times On and Off?
      1x = 1 button press. So your hazards end up being on at the end when the battery light flashes, rear fogs off.
      2017 S90 T5 Momentum - Magic Blue over Amber (Wife's)
      2015 V60 T6 R-Design Polestar - Savile Grey Metallic over Nubuck (Mine)

    12. #10
      Member Veefifty T5AWD's Avatar
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      Quote Originally Posted by event View Post
      The battery icon did indeed flash. Time will tell if the voltage error goes away, it's very intermittent! thanks a lot!
      Very interesting! Fingers crossed we found a manual solution to the BMS reset debacle!
      Logan

      2015 S60 T6 AWD R-Design Polestar
      2008 S40 2.4i - hers

      Former:

      2013 C30 Polestar Limited Edition #87/250 | 2005 V50 T5 AWD | 1995 Yellow 850 T5-R

    13. #11
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      Quote Originally Posted by FAUGrad View Post
      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      This worked on my 2015.5 V60 RD but didn't work on my wife's 2013 XC70.
      My concern is that this will only work for the facelift cars. I wonder if it would work with an early car that has a DIM retrofit?
      I'm not good, I'm not nice, I'm just right.
      2012 S60 T6 R-Design | 1998 S70 T5 SE | 1986 944 Turbo

    14. #12
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      I've had this problem since new with my late 2015 Polestar !! It'd been unsold for around 7 months.

      New Volvo battery 2 days after I bought it.

      Various opinions on forums and the dealers that it's normal; ranging from the Volvo computer only charges to 80% to save fuel, to Volvo computer learning how often I use the car so it's charged just enough !

      Is all that crap true ? I do not know.

      The car has never failed to start, even with the low battery warning.

      I keep a very compact Lithium ion jump start pack in tha car just in case
      Last edited by grahamR; 01-21-2020 at 04:39 PM.

    15. #13
      Junior Member Azlkk's Avatar
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      I was getting the same warning even after having the over-priced Volvo battery installed at a dealer. Took it back asking them to make sure that the BSM was reset, waited two hours only to be told that my alternator was "throwing a code" and needed to be replaced at ~$700 dollars. Plugged in an OBD diagnostic dongle and using an app on my iPhone I not only found that the alternator was charging correctly but also that the BSM had been last reset in 2015 when the car was built. I was not impressed.
      Volvo: 2015.5 XC60 RD Plat. arrest-me red w/ Climate, BLIS & OEM trailer hitch. Koni Special Active struts/shocks, IPD skid plate & rear sway bar
      Others: 2019 Merc AMG E53 Cpe, 1988 Merc 560SL, 1969 MGB GT, 1957 MG ZB Magnette, 1953 MG TD & 1935 Ford 5W Dlx Cpe

    16. #14
      Junior Member event's Avatar
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      Quote Originally Posted by Veefifty T5AWD View Post
      Very interesting! Fingers crossed we found a manual solution to the BMS reset debacle!
      I wonder what other hidden button codes there are? Service light reset? Parking Brake Retract?
      2017 S90 T5 Momentum - Magic Blue over Amber (Wife's)
      2015 V60 T6 R-Design Polestar - Savile Grey Metallic over Nubuck (Mine)

    17. #15
      Senior Member Wayne T5's Avatar
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      Quote Originally Posted by event View Post
      I wonder what other hidden button codes there are? Service light reset? Parking Brake Retract?
      We know the service light one - use it all the time. I'm a little skeptical of the BMS one.
      Past: '94 854, '99 S70 T5 SE, '99 S70 GLT, '04 S60R M, '12 S60 T5, '13 S60 T5, '15 S60 RD, '05 V70R GT
      Present: '95 854 T-5R, '06 XC70, '15 XC70 T6, '15.5 XC60 T6, '16 V60 P*

    18. #16
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      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      It's little golden nuggets like this that make it worthwhile to read through these forums. THANK YOU!

    19. #17
      Member Veefifty T5AWD's Avatar
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      Quote Originally Posted by Wayne T5 View Post
      We know the service light one - use it all the time. I'm a little skeptical of the BMS one.
      Same here, but the fact that the battery icon did illuminate makes me think it did something.
      Logan

      2015 S60 T6 AWD R-Design Polestar
      2008 S40 2.4i - hers

      Former:

      2013 C30 Polestar Limited Edition #87/250 | 2005 V50 T5 AWD | 1995 Yellow 850 T5-R

    20. #18
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      I wonder which combination activates the passenger ejection seat...

      http://i.imgur.com/9zP9Ftv.gifv
      Last edited by budleach; 01-23-2020 at 02:05 PM.

    21. #19
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      do not forget in vida they say "In order for the battery monitoring sensor to calculate the battery's correct charge level, the vehicle must be in sleep mode for at least 4 hours after reset. In some instances 6 hours in sleep mode may be required. This is on the condition that the ignition key has been removed, doors and lids are closed and the car is locked. If the charge level is still low, the brake energy regeneration feature and start/stop feature will not be permitted. The battery requires charging."
      basically lock it for 4 hours when done so calibration can finish

    22. #20
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      Had same issue all i did is put the car to ignition 1 disconnected the battery sensor on the battery on my 2017 s60 and than connected back in 30 seconds problem went away no issue since .
      Own:
      2018 s90 T6 AWD Inscription w/air suspension B&W Brown interior.
      2017 s60 inscription Platinum FWD
      2003 Oldsmobile Aurora.
      Had:
      2001, 2002 ,Oldsmobile Aurora.
      1998, 1999 Oldsmobile Intrigue.

      Paul.

    23. #21
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      Quote Originally Posted by Pauls90 View Post
      Had same issue all i did is put the car to ignition 1 disconnected the battery sensor on the battery on my 2017 s60 and than connected back in 30 seconds problem went away no issue since .
      Disconnecting the sensor does not reset the battery age information stored in the CEM. What you describe will cause the system to re-evaluate the battery's voltage and state of charge, which can help, but it will not solve an issue if the problem is that the car thinks the battery is old.
      I'm not good, I'm not nice, I'm just right.
      2012 S60 T6 R-Design | 1998 S70 T5 SE | 1986 944 Turbo

    24. #22
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      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      This didn't work on MY2013 S60 T6. I don't even have a rear fog light button.
      2013 S60 T6 R-Design - Rebel Blue - Polestar Tune - Polestar Performance Chassis - Polestar Performance Cat Back Exhaust
      2014 XC90 3.2 R-Design - Black Saphire

    25. #23
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      Quote Originally Posted by event View Post
      I wonder what other hidden button codes there are? Service light reset? Parking Brake Retract?
      Here's one not mentioned here to often. Seems to only let you know if a DTC is set. It wont tell you the code.

      Quote Originally Posted by mrcandy View Post
      With the car running, press and hold the 'read' button on the end of the left side stalk, then press the rear fog light button twice in quick succession. Release the read button and the DIM will show "Checking DTCs", and then change to "DTCs in vehicle" (in my case, if there are none it would presumably say so). Each subsequent press of the read switch steps you through different modules within the car. On my vehicle, the module list with its reported state, and what I believe the module acronym means is:
      BCM Checking Brake Control Module
      DEM Ready Differential Module
      TCM Checking Transmission Control Module
      ECM Ready Engine Control Module
      PBM Checking Parking Brake Module
      FSM Ready Forward Sensing Module (radar)
      SAS Ready Secondary Air System
      CEM DTCs set Central Electronics Module (probably due to a bulb I had out)
      SRS Ready Safety Restraint System
      EPS Ready Electric Power Steering
      CVM Ready Closing Velocity Module
      CCM Ready Climate Control Module
      DDM Checking Driver Door Module
      DIM Ready Driver Information Module
      ICM Checking Infotainment Control Module
      KVM Ready Keyless Vehicle Module
      PDM Checking Passenger Door Module
      PSM Checking Power Seat Module
      PAM Ready Parking Assist Module
      IAM Checking Integrated Audio Module
      Rdar Ready Remote Digital Audio Receiver (sat radio)
      DPM Not checked ????
      PAC Ready Parking Assist Camera


      Not sure what the difference is between Ready and Checking, but I couldn't get any of the ones in Checking state to change to Ready or anything else. I also could not find any way to see what the actual code is that has been set in the CEM, although I suspect it relates to a bulb failure I had recently.
      2012 S60 T5 - Flamenco Red, Soft/Sandstone Beige, Climate, Premium, Multimedia, Xenons, BLIS, PCC, Park Assist, Urbane Wood, TFT Retrofit

    26. #24
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      Quote Originally Posted by thezoneS60 View Post
      Quote Originally Posted by Veefifty T5AWD View Post
      This is newly posted and not confirmed as working, but maybe you can be the guinea pig:

      BMS (battery monitoring system) RESET without VIDA
      BMS counter reset
      1. Ignition on position II (engine off)
      2. parking lights on
      3. rear fog lights press 6x
      4. hazard flashers press 3x
      results:
      battery icon (above gear selector on TFT display) blinks 3x
      This didn't work on MY2013 S60 T6. I don't even have a rear fog light button.
      I don't think they made a US version without a rear fog light. It's the lower of the two buttons between the headlight switch and the instrument panel dimmer.
      I'm not good, I'm not nice, I'm just right.
      2012 S60 T6 R-Design | 1998 S70 T5 SE | 1986 944 Turbo

    27. #25
      Junior Member event's Avatar
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      That's killer. We need a sticky for these!
      2017 S90 T5 Momentum - Magic Blue over Amber (Wife's)
      2015 V60 T6 R-Design Polestar - Savile Grey Metallic over Nubuck (Mine)

    28. #26
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      Quote Originally Posted by zenmervolt View Post
      I don't think they made a US version without a rear fog light. It's the lower of the two buttons between the headlight switch and the instrument panel dimmer.
      I'm not in the US but yes you are correct I do have one! Still doesn't work for pre 2014 cars by the looks.
      2013 S60 T6 R-Design - Rebel Blue - Polestar Tune - Polestar Performance Chassis - Polestar Performance Cat Back Exhaust
      2014 XC90 3.2 R-Design - Black Saphire

    29. #27
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      Quote Originally Posted by zenmervolt View Post
      Disconnecting the sensor does not reset the battery age information stored in the CEM. What you describe will cause the system to re-evaluate the battery's voltage and state of charge, which can help, but it will not solve an issue if the problem is that the car thinks the battery is old.
      "event " Said that he gets a message low battery voltage. The car only can think that if the voltage is the issue. So how is resting that sensor not resolving the problem that "event " said that he has? I can put another battery that is old and than reset the computer and car will think battery is new . But if voltage is very low on so called new battery the car will give that message anyway . There is no message in a car that say Battery is 10 years old you need to change it
      Own:
      2018 s90 T6 AWD Inscription w/air suspension B&W Brown interior.
      2017 s60 inscription Platinum FWD
      2003 Oldsmobile Aurora.
      Had:
      2001, 2002 ,Oldsmobile Aurora.
      1998, 1999 Oldsmobile Intrigue.

      Paul.

    30. #28
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      Quote Originally Posted by Pauls90 View Post
      Quote Originally Posted by zenmervolt View Post
      Disconnecting the sensor does not reset the battery age information stored in the CEM. What you describe will cause the system to re-evaluate the battery's voltage and state of charge, which can help, but it will not solve an issue if the problem is that the car thinks the battery is old.
      "event " Said that he gets a message low battery voltage. The car only can think that if the voltage is the issue. So how is resting that sensor not resolving the problem that "event " said that he has? I can put another battery that is old and than reset the computer and car will think battery is new . But if voltage is very low on so called new battery the car will give that message anyway . There is no message in a car that say Battery is 10 years old you need to change it
      The car will use different low battery warning thresholds depending on the age of the battery. This is because old batteries are less tolerant of excess discharge than new batteries. It also remembers the amount of charge/discharge cycles the battery has seen, so battery "age" is not just a function of time - it's also a function of how the battery has been treated in the past.

      All of these factors combine to allow the car to vary the threshold of the low battery warning to suit the specific history of a given battery. This can only be done properly, however, if the battery age and history parameters stored in the CEM are reset through VIDA. Simply disconnecting and reconnecting the sensor does not fully reset the entire system.
      I'm not good, I'm not nice, I'm just right.
      2012 S60 T6 R-Design | 1998 S70 T5 SE | 1986 944 Turbo

    31. #29
      Junior Member meade18's Avatar
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      Still hoping someone will check their battery counter with VIDA, do this battery reset with the light controls, and then go back and check with VIDA to see if it actually reset the counter.

      Is there anyone with a DiCE and VIDA that's about to get a new battery and willing to try?

      I have a new battery (a few months old now), but no DiCE and VIDA and not willing to pay the dealership $100+ to do the reset. I'd love to do this light control battery reset if it is confirmed that it actually works.
      2015.5 Volvo V60 Premier T5 (2.0T Drive-E) FWD (with a new engine)

    32. #30
      Member Veefifty T5AWD's Avatar
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      Quote Originally Posted by meade18 View Post
      Still hoping someone will check their battery counter with VIDA, do this battery reset with the light controls, and then go back and check with VIDA to see if it actually reset the counter.

      Is there anyone with a DiCE and VIDA that's about to get a new battery and willing to try?

      I have a new battery (a few months old now), but no DiCE and VIDA and not willing to pay the dealership $100+ to do the reset. I'd love to do this light control battery reset if it is confirmed that it actually works.
      What's the harm in trying for now while waiting for someone to confirm? Just curious.
      Logan

      2015 S60 T6 AWD R-Design Polestar
      2008 S40 2.4i - hers

      Former:

      2013 C30 Polestar Limited Edition #87/250 | 2005 V50 T5 AWD | 1995 Yellow 850 T5-R

    33. #31
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      Quote Originally Posted by Veefifty T5AWD View Post
      What's the harm in trying for now while waiting for someone to confirm? Just curious.
      That's generally a legitimate point, however here is my thinking.

      I would like my battery to be 100% charged if I'm going to do it. I don't have a charger. I will go out and buy a charger (or borrow one) and do the non-VIDA reset if someone tells me that it actually works. I don't want to bother with the cost (or effort) of a getting a charger if the reset isn't actually doing anything. I otherwise have no use for a battery charger.

      If that's flawed thinking in some way, feel free to let me know.
      2015.5 Volvo V60 Premier T5 (2.0T Drive-E) FWD (with a new engine)

    34. #32
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      What does having a charger have to do with resetting the battery monitor? Doubtful even a brand new battery that's been sitting on shelf has a full charge when installed. The battery monitor only needs to know if it is a new battery. You should be more worried about resetting the monitor with an old battery.
      2012 S60 T5 - Flamenco Red, Soft/Sandstone Beige, Climate, Premium, Multimedia, Xenons, BLIS, PCC, Park Assist, Urbane Wood, TFT Retrofit

    35. #33
      Junior Member meade18's Avatar
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      Quote Originally Posted by ecoDrive View Post
      What does having a charger have to do with resetting the battery monitor? Doubtful even a brand new battery that's been sitting on shelf has a full charge when installed. The battery monitor only needs to know if it is a new battery. You should be more worried about resetting the monitor with an old battery.
      That's a good point and I am curious if anyone else with a good understand understanding of batteries, charge levels, the system our car uses, etc. agree with that. In which case, I might as well do the reset. My battery is currently 6 months old.
      2015.5 Volvo V60 Premier T5 (2.0T Drive-E) FWD (with a new engine)

    36. #34
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      Quote Originally Posted by ecoDrive View Post
      What does having a charger have to do with resetting the battery monitor? Doubtful even a brand new battery that's been sitting on shelf has a full charge when installed. The battery monitor only needs to know if it is a new battery. You should be more worried about resetting the monitor with an old battery.
      Agreed.

      I have no direct knowledge of how the BMS in a Volvo operates, but I believe the purpose of the monitor is to keep track of things like age, number of starts, charge/run time after each start, repeated cold starts, parasitic discharge rates, and voltage before and after a given run time/charge cycle to assess the overall health of the battery.

      If my assumption is correct, resetting the BMS would clear all the historical data for the battery and start over, tracking lifetime events from zero (Similar to transmission counter). So the BMS would assess age and cumulative event history as well as current real time observations and feed that data into an algorithm to determine the current "health" of the battery.

      Don't think of resetting the BMS like a "calibration" where you would be setting the current state of the new battery as a benchmark for what a fully charged battery should look like. As mentioned, not every new battery off the shelf is at peak charge.
      Last edited by budleach; 01-28-2020 at 01:40 PM.

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      I have a Schauer 10 amp, 12 volt, battery charger. When the battery in my 2005 S60 is running low, I have used this charger to bring it back up to full charge. Typically, the charge rate will be 5 or 6 amps, initially. There is an ammeter on the face of the charger, and I am using this meter to determine the charge rate. After an hour or two, the charge rate will typically drop to 3 or 4 amps. After another hour or two, the charge rate will drop to 1 or 2 amps. When the charge rate drops to 1 amp, and appears to be stable over time, I consider the battery to be fully charged, and remove the charger. During the charge cycle, I will repeatedly put my hand on the battery to see if it is getting warm. I don't recall that it has ever exceeded 80 degrees F. Since buying the car, used, in 2017, I have only had to recharge the battery twice, and each time it was because I left the headlights on when the engine was not running. I have never replaced the battery, and I would not replace any battery that took a charge and performed as expected after a manual recharge cycle. The car starts and runs reliably. All of the electric power accessories work normally. It seems, from reading the comments above, that later model Volvos have more electric accessories than my car does. It seems that the main battery is being partially discharged, and operated in this condition for weeks or months. For people who live in a sunny climate, and park the vehicle outdoors, a solar charging panel might be sufficient to keep the battery at full charge, without damaging the battery by overcharging. Overcharging a battery will damage the battery, eventually drying out the electrolyte. It is prevented by monitoring the charge rate, the elapsed time, and the battery temperature. The advantage of a small solar cell array is that the charge rate will be below one amp. This low charge rate reduces the chances of overcharge.

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